Komatsu ecot3 Operation And Maintenance Manual page 69

OPERATION
DETAILED CONTROLS AND GAUGES
Hydraulic Oil Temperature Monitor
This monitor (2) warns the operator that the hydraulic oil
temperature has risen.
If the hydraulic oil temperature becomes abnormally high,
abnormality display (C) is shown.
Stop operations and stop the engine or run it at low idle until the
monitor changes to normal display (B).
Display (A) at low temperatures: Monitor background (D) is white
Display (B) at correct temperatures: Monitor background (D) is
blue
Display (C) when condition is abnormal: Monitor background (D)
is red
Engine Oil Pressure Monitor
Monitor (3) lights up in red if the engine lubrication oil pressure
goes below normal level. If monitor lights up in red, stop the engine
immediately, check the lubrication system and level of oil in the
engine oil pan.
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